I need help with stoichiometry! if you could help please respond to this question and i will post the question. reason being, no one has answered the questions i have posted, and I need help quickly!

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".

answerca air mass;